CN111552209A - Control circuit and switch module using same - Google Patents
Control circuit and switch module using same Download PDFInfo
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- CN111552209A CN111552209A CN202010385988.3A CN202010385988A CN111552209A CN 111552209 A CN111552209 A CN 111552209A CN 202010385988 A CN202010385988 A CN 202010385988A CN 111552209 A CN111552209 A CN 111552209A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a control circuit and a switch module applying the same, which comprises an operation control module, a signal trigger module and a comparison module, wherein the operation control module can generate a first trigger signal through logic operation, the signal trigger module can be driven to generate a second trigger signal, the comparison module comprises a first input end, a second input end and an output end, the first input end of the comparison module is connected with the operation control module, the second input end of the comparison module is connected with the signal trigger module, and the comparison module can invert a signal output by the output end of the comparison module when receiving the first trigger signal or the second trigger signal.
Description
Technical Field
The invention relates to the field of electronic circuits, in particular to a control circuit and a switch module using the same.
Background
At present, the development of the internet of things technology and the application of remote control are more and more extensive, the switch technology of remote control is also developed, and the remote control switch technology is also compatible with local control. Generally, in existing products, an operation control module (e.g., MCU, CPU, etc.) may be used, and the operation control module may be connected to a wireless transmission module and a key touch module, and a generated remote trigger signal or local trigger signal is determined by software operation of the operation control module and then outputs a corresponding control instruction to control a circuit module (switch module) behind the operation control module.
Therefore, the current control is completely realized based on the operation control module, once the operation control module is interfered to fail, the operation control module cannot finish software operation judgment, so that a circuit at the rear part is completely uncontrolled, and even if the local key touch module is driven to generate a corresponding trigger signal, the operation control module cannot be controlled, so that a safety problem may be caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control circuit, and multi-path control can control the output signal, thereby improving the control flexibility and safety.
The invention also provides a switch module which can control the on-off of the switch through multi-path control, is mutually associated but not mutually limited, and improves the control flexibility and the safety.
According to a first aspect embodiment of the present invention, a control circuit includes: the operation control module can generate a first trigger signal through logic operation; the signal trigger module can be driven to generate a second trigger signal; the comparison module comprises a first input end, a second input end and an output end, the first input end of the comparison module is connected with the operation control module, the second input end of the comparison module is connected with the signal trigger module, and the comparison module can invert a signal output by the output end of the comparison module when receiving a first trigger signal or a second trigger signal.
The control circuit according to the embodiment of the invention has at least the following beneficial effects:
according to the control circuit, the operation control module can generate a first trigger signal according to logic operation, the first trigger signal is input into the comparison module, and then a signal output by the output end of the comparison module can be inverted, so that the operation of a rear circuit is controlled.
According to some embodiments of the invention, the comparison module is an exclusive or gate unit or an exclusive or gate unit.
According to some embodiments of the present invention, the mobile terminal further includes a wireless transmission module, the operation control module is connected to the wireless transmission module to generate a first trigger signal according to a received wireless signal, the operation control module is connected to the output end of the comparison module to obtain a state of a signal output by the output end of the comparison module, and the wireless transmission module is capable of sending the state of the signal output by the output end of the comparison module to the outside.
According to some embodiments of the invention, the first trigger signal and the second trigger signal are rising edge signals or falling edge signals.
According to some embodiments of the present invention, the operation control module includes an operation processing unit and a first register, the first register includes an input end and an output end, the operation processing unit is connected to the input end of the first register and outputs a first pulse signal, the output end of the first register is connected to the first input end of the comparison module, and the first register can invert a first level signal output from the output end of the first register to form a rising edge signal or a falling edge signal when receiving the first pulse signal.
According to some embodiments of the present invention, the arithmetic processing unit includes an arithmetic processing chip and a crystal oscillator component, the crystal oscillator component is connected to the arithmetic processing chip to provide a clock signal for the arithmetic processing chip, and the arithmetic processing chip forms the first pulse signal according to the clock signal.
According to some embodiments of the present invention, the signal triggering module includes a key triggering unit and a second register, the second register includes an input end and an output end, the key triggering unit is connected to the input end of the second register and the key triggering unit can generate and output a first pulse signal when being driven, and the second register can invert a second level signal output by the output end of the second register to form a rising edge signal or a falling edge signal when receiving a second pulse signal.
According to a second aspect of the present invention, the switch module includes a switch driving module and the control circuit disclosed in any of the above embodiments, wherein an output terminal of the comparing module is connected to the switch driving module to control the switch driving module to operate according to a signal output by the output terminal of the comparing module.
The switch module according to the embodiment of the invention at least has the following beneficial effects:
according to the switch module, the operation control module can generate the first trigger signal according to the logic operation, the first trigger signal is input into the comparison module, the signal output by the output end of the comparison module can be inverted, and therefore the on-off of the switch driving module is controlled.
According to some embodiments of the present invention, the switch driving module includes a switch driving unit and a relay unit, the relay unit includes a relay coil and a contact assembly that can be attracted by the relay coil, one end of the contact assembly can be connected to an external power source, the other end of the contact assembly can be connected to an external load, one end of the relay coil can be connected to the external power source, the other end of the relay coil is connected to an input end of the switch driving unit, an output end of the switch driving unit is grounded, and an output end of the comparison module is connected to a control end of the switch driving unit to control on/off between the input end of the switch driving unit and the output end of the switch driving unit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a switch module according to one embodiment of the present invention;
FIG. 2 is a circuit diagram of an operation control module according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a signal triggering module according to an embodiment of the switch module of the present invention;
fig. 4 is a circuit diagram of a comparison module and a switch driving module according to an embodiment of the switch module of the invention.
Reference numerals:
the wireless transmission device comprises an operation control module 100, an operation processing unit 110, an operation processing chip 111, a crystal oscillator component 112, a first register 120, a signal trigger module 200, a key trigger unit 210, a second register 220, a comparison module 300, a wireless transmission module 400, a switch driving module 500, a switch driving unit 510 and a relay unit 520.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the positional or orientational descriptions referred to, for example, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the positional or orientational relationships shown in the drawings and are for convenience of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, a control circuit according to an embodiment of the present invention includes an operation control module 100, a signal triggering module 200, and a comparison module 300, wherein the operation control module 100 is capable of generating a first triggering signal through a logic operation; the signal triggering module 200 can be driven to generate a second triggering signal; the comparison module 300 includes a first input terminal, a second input terminal, and an output terminal, the first input terminal of the comparison module 300 is connected to the operation control module 100, the second input terminal of the comparison module 300 is connected to the signal trigger module 200, and the comparison module 300 can invert the signal output by the output terminal of the comparison module 300 when receiving the first trigger signal or the second trigger signal.
It should be noted that, as shown in fig. 2, the operation control module 100 here may be an integrated circuit or a chip with a logic operation function, for example, an MCU, a CPU, or another chip, which can be recorded with a programming program, an input serial port of the operation control module 100 inputs some instructions, and after the logic operation of the programming program in the operation control module 100, an output instruction is obtained and output through an output serial port, so that the first trigger signal can be generated.
The signal triggering module 200 may be a key triggering unit 210, as shown in fig. 3, an external power source supplies power to the key triggering unit 210, and a user presses the key triggering unit 210 to generate a second triggering signal; the signal trigger module 200 may also be an element that generates a second trigger signal due to the influence of an external environment, for example, the signal trigger module 200 is a temperature-sensitive element, an external power supply supplies power to the signal trigger module 200, and when the temperature changes, the second trigger signal may also be generated due to the change of the resistance value.
In some embodiments of the present invention, the first trigger signal and the second trigger signal are rising edge signals or falling edge signals, or the first trigger signal and the second trigger signal are pulse signals.
In some embodiments of the present invention, the first trigger signal and the second trigger signal are rising edge signals or falling edge signals, and the comparison module 300 is an xor gate unit or an xnor gate unit, specifically, the comparison module 300 may be selected from conventional xor gate integrated elements or xnor gate integrated elements, as shown in fig. 4, the comparison module 300 is an xor gate unit, when the signal received by the first input terminal (a) of the comparison module 300 is at a low level and the signal received by the second input terminal (B) is at a low level, the output terminal (Y) outputs a low level, when the first trigger signal (rising edge) is input to the first input terminal of the comparison module 300, so that the received signal changes from a low level to a high level, the output terminal (Y) outputs a high level, as shown in table 1 in particular, and thereafter, when the first trigger signal (falling edge) is input to the first input terminal of the comparison module 300 or when the second trigger signal (rising edge) is input to the second input terminal of the comparison module 300 End, etc. cases are similar to those described above.
| A first input terminal (A) | Second input terminal (B) | Output end (Y) |
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |
TABLE 1
The comparison module 300 is an exclusive or gate unit, as shown in table 2, and the specific situation is similar to that of an exclusive or gate unit, which is not described herein again.
| A first input terminal (A) | Second input terminal (B) | Output end (Y) |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |
TABLE 2
In the control circuit of the present invention, the operation control module 100 can generate a first trigger signal according to the logic operation, the first trigger signal is input to the comparison module 300, i.e. the signal output by the output end of the comparison module 300 can be inverted, thereby controlling the operation of the rear circuit, similarly, the signal trigger module 200 can generate a second trigger signal when being driven, the second trigger signal is input to the comparison module 300, the signal output by the output end of the comparison module 300 can also be inverted, likewise, the operation of the rear circuit can also be controlled, the operation between the operation control module 100 and the signal trigger module 200 is not limited, the multipath control of the present design can control the output signal, and the control flexibility and the safety are improved.
In some embodiments of the present invention, a wireless transmission module 400 is further included, the operation control module 100 is connected to the wireless transmission module 400 to be able to generate a first trigger signal according to the received wireless signal, the operation control module 100 is connected to the output end of the comparison module 300 to obtain a state of the signal output by the output end of the comparison module 300, and the wireless transmission module 400 is able to send the state of the signal output by the output end of the comparison module 300 to the outside.
Specifically, as shown in fig. 2, the wireless transmission module 400 may be one or more of WiFi, bluetooth, and ZigBee, in this design, the operation control module 100 is integrated with a ZigBee protocol, and cooperates with an antenna to obtain an external wireless control command, and the operation control module 100 may generate a first trigger signal, and similarly, the operation control module 100 may obtain a state of a signal output by an output end of the comparison module 300, so that the operation control module 100 may know the state of the signal output by the output end of the comparison module 300 at this time, and may also send the signal to a user in a wireless manner, so as to further control a rear circuit to operate, for example, a switch module applied to a switch module, when the output end of the comparison module 300 outputs a low level, the rear switch driving module 500 is turned off, when the output end of the comparison module 300 outputs a high level, the rear switch driving module 500 is turned on, and the user may know the output state of the comparison module 300 at this time, to determine whether a control command needs to be output to the operation control module 100, and the operation control module 100 may generate a first trigger signal to switch the output state of the output terminal of the comparison module 300.
In some embodiments of the present invention, the operation control module 100 includes an operation processing unit 110 and a first register 120, the first register 120 includes an input end and an output end, the operation processing unit 110 is connected to the input end of the first register 120 and the operation processing unit 110 outputs a first pulse signal, the output end of the first register 120 is connected to the first input end of the comparison module, and the first register 120 is capable of inverting a first level signal output by the output end of the first register 120 to form a rising edge signal or a falling edge signal when receiving the first pulse signal.
In some embodiments of the present invention, the operation control module 100 may also be only composed of the operation processing unit 110, which may be an MCU, a CPU, or another chip, and the operation processing unit 110 may generate the first trigger signal.
For the embodiment that the operation control module 100 includes the operation processing unit 110 and the first register 120, as shown in fig. 2, specifically, the first register 120 may be a D flip-flop U2B, the operation processing unit 110 is a processing chip integrated with ZigBee, such as JN5169, an input terminal (CLK pin) of the first register 120 is connected to the DIO16 pin of the operation processing unit 110, CLR pin and PR pin of the first register 120 are connected to ground, a register terminal (D pin) of the first register 120 and an output flip-flop terminal (D pin) of the first register 120 are connected to (b) (shown in fig. 2)
Pin) connection, when the level of the input terminal of the first register 120 changes from low to high, the rising edge triggers the output terminal (pin Q) of the first register 120 to invert, and the output terminal of the first register 120 is output to the first input terminal of the comparison module 300.
Meanwhile, a program can be written in the arithmetic processing unit 110, a low level pulse of 10ms is generated at a reset pin (RESETN) of the arithmetic processing unit 110 at the moment of powering on the reset resistor R15 and the capacitor C9, and the arithmetic processing unit 110 is reset to operate, thereby forming a first pulse signal.
The processing unit 110 can also read the status of the output of the comparison module 300 through the input port DIO8, and report to the cloud wirelessly.
The arithmetic processing unit 110 can also receive a wireless control command through the wireless ZigBee signal, when receiving a control command (for example, a close power-on command), the arithmetic processing unit 110 will read the DIO8 pin signal first, if the DIO8 pin is high level, it indicates that the output is closed to power on, so the output terminal (DIO16 pin) of the arithmetic processing unit 110 does not need to be changed; if the pin DIO8 is low, the program of the arithmetic processing unit 110 determines to send a 5ms low pulse to the CLK pin of the first register 120 connected thereto through the pin DIO16, triggering the output signal inversion of the first register 120.
In some embodiments of the present invention, as shown in fig. 2, the arithmetic processing unit 110 includes an arithmetic processing chip 111 and a crystal oscillator component 112, the crystal oscillator component 112 is connected to the arithmetic processing chip 111 to provide a clock signal to the arithmetic processing chip 111, and the arithmetic processing chip 111 forms a first pulse signal according to the clock signal.
According to some embodiments of the present invention, the signal triggering module 200 includes a key triggering unit 210 and a second register 220, the second register 220 includes an input end and an output end, the key triggering unit 210 is connected to the input end of the second register 220 and the key triggering unit 210 can generate and output a first pulse signal when driven, and the second register 220 can invert a second level signal output by the output end of the second register 220 to form a rising edge signal or a falling edge signal when receiving a second pulse signal.
Specifically, the key triggering unit 210 may adopt a key having two states of on and off, thereby forming a high-low level signal; or the key triggering unit 210 may adopt a self-recovering normally-open key, as shown in fig. 3, the key S1 is a normally-open key, the second register 220 is a D flip-flop U2B, one end of the key S1 is grounded, the other end of the key S1 is connected to the input end (CLK pin) of the D flip-flop U2B and one end of the resistor R14, the external power supply is connected to the other end of the resistor R14, the output end Q pin of the D flip-flop U2B is connected to the second input end of the comparison module 300, and the reverse output end (reverse output end) of the D flip-flop U2B (see (b)) is
Pin) is connected with a register end (pin D) of the D flip-flop U2B, a key S1 is pressed to generate a second pulse signal, and a second level signal output by the D flip-flop U2B is inverted to form a rising edge signal or a falling edge signal.
The switch module according to the second aspect of the present invention, as shown in fig. 1-4, includes a switch driving module 500 and the control circuit disclosed in any of the above embodiments, wherein an output terminal of the comparing module 300 is connected to the switch driving module 500 to control the operation of the switch driving module 500 through a signal output from the output terminal of the comparing module 300.
In the switch module of the present invention, the operation control module 100 may generate the first trigger signal according to the logic operation, the first trigger signal is input to the comparison module 300, i.e. the signal output by the output terminal of the comparison module 300 may be inverted, thereby controlling the on/off of the switch driving module 500, similarly, the signal trigger module 200 may generate the second trigger signal when being driven, the second trigger signal is input to the comparison module 300, and may also invert the signal output by the output terminal of the comparison module 300, and likewise may control the on/off of the switch driving module 500, the design may control the on/off of the switch through multiple paths, which are related to each other but not limited to each other, thereby improving the flexibility and the security of the operation.
Specifically, as shown in fig. 4, the switch driving module 500 includes a switch driving unit 510 and a relay unit 520, the relay unit 520 includes a relay coil and a contact assembly that can be attracted by the relay coil, one end of the contact assembly can be connected to an external power source, the other end of the contact assembly can be connected to an external load, one end of the relay coil can be connected to the external power source, the other end of the relay coil is connected to an input end of the switch driving unit 510, an output end of the switch driving unit 510 is grounded, an output end of the comparison module 300 is connected to a control end of the switch driving unit 510 to control on/off between the input end of the switch driving unit 510 and an output end of the switch driving unit 510, wherein the switch driving unit 510 may be formed by a switch tube, for example, a transistor Q1 or a MOS tube is used, an output signal of the output end of the comparison module 300 can control the, thereby implementing the switching.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A control circuit, comprising:
the operation control module can generate a first trigger signal through logic operation;
the signal trigger module can be driven to generate a second trigger signal;
the comparison module comprises a first input end, a second input end and an output end, the first input end of the comparison module is connected with the operation control module, the second input end of the comparison module is connected with the signal trigger module, and the comparison module can invert a signal output by the output end of the comparison module when receiving a first trigger signal or a second trigger signal.
2. A control circuit according to claim 1, wherein: the comparison module is an exclusive-OR gate unit or an exclusive-OR gate unit.
3. A control circuit according to claim 1, wherein: the wireless transmission device comprises a comparison module, an operation control module and a wireless transmission module, wherein the operation control module is connected with the wireless transmission module to generate a first trigger signal according to a received wireless signal, the operation control module is connected with the output end of the comparison module to acquire the state of a signal output by the output end of the comparison module, and the wireless transmission module can send the state of the signal output by the output end of the comparison module to the outside.
4. A control circuit according to claim 1, wherein: the first trigger signal and the second trigger signal are rising edge signals or falling edge signals.
5. A control circuit according to claim 4, characterized in that: the operation control module comprises an operation processing unit and a first register, the first register comprises an input end and an output end, the operation processing unit is connected with the input end of the first register and outputs a first pulse signal, the output end of the first register is connected with the first input end of the comparison module, and the first register can invert a first level signal output by the output end of the first register to form a rising edge signal or a falling edge signal when receiving the first pulse signal.
6. A control circuit according to claim 5, characterized in that: the operation processing unit comprises an operation processing chip and a crystal oscillator assembly, the crystal oscillator assembly is connected with the operation processing chip to provide a clock signal for the operation processing chip, and the operation processing chip forms the first pulse signal according to the clock signal.
7. A control circuit according to claim 4, characterized in that: the signal trigger module comprises a key trigger unit and a second register, the second register comprises an input end and an output end, the key trigger unit is connected with the input end of the second register and can generate and output a first pulse signal when being driven, and the second register can invert a second level signal output by the output end of the second register to form a rising edge signal or a falling edge signal when receiving a second pulse signal.
8. A switch module comprising a switch driving module and a control circuit according to any one of claims 1 to 7, wherein an output terminal of the comparison module is connected to the switch driving module to control the operation of the switch driving module through a signal output from the output terminal of the comparison module.
9. The switch module of claim 8, wherein: the switch drive module includes switch drive unit and relay unit, the relay unit include relay coil and can by the contact subassembly of relay coil actuation, the one end of contact subassembly can be connected with external power source, the other end of contact subassembly can be connected with external load, relay coil's one end can be connected with external power source, relay coil's the other end with switch drive unit's input is connected, switch drive unit's output ground connection, compare the module the output with switch drive unit's control end is connected with control switch drive unit's input with break-make between switch drive unit's the output.
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| CN202010385988.3A CN111552209A (en) | 2020-05-09 | 2020-05-09 | Control circuit and switch module using same |
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| CN202010385988.3A CN111552209A (en) | 2020-05-09 | 2020-05-09 | Control circuit and switch module using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114185330A (en) * | 2021-12-12 | 2022-03-15 | 蜂联智能（深圳）有限公司 | Control method and control device based on multi-scene interaction |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114185330A (en) * | 2021-12-12 | 2022-03-15 | 蜂联智能（深圳）有限公司 | Control method and control device based on multi-scene interaction |
| CN114185330B (en) * | 2021-12-12 | 2024-06-11 | 深圳市集智创新信息技术有限公司 | Control method and control device based on multi-scene interaction |
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